中文摘要：

针对低压多源并供点状网络中,某些电源可能出现逆功率运行而不能满足并供条件的问题,提出了一种低压母线潮流控制方法。分析了低压多源并供点状网络潮流分布规律,得出了并供电源出力与电源电压、系统等值阻抗以及低压侧负荷之间的定量关系,理论上分析出电源出现逆功率输出的条件;为满足多源实时并供运行条件,推导出基于均衡电源出力的低压母线侧稳态潮流控制模型,得到了电源出力调节量与串联补偿电压之间的关系。最后搭建了试验系统,并基于统一潮流控制器进行了稳态潮流控制试验,结果证明了该方法的有效性。

英文摘要：

In the spot network with multi low-voltage sources parallel supply,some sources might run with reverse power,making it impossible to ensure the system operating criteria. To solve the above problem,a power flow control method of the low-voltage bus is proposed. The law of power flow distribution is analyzed and the relation between the source output and the source voltage,system equivalent impedance and low voltage load is deduced. And the condition for reverse output is analyzed theoretically. To meet the operating condition of real-time parallel supply,the power flow control model of the low-voltage bus is proposed based on the principle of balanced source output,which gives the relationship between the source output and series compensating voltage. Finally,an experimental system is designed with the unified power flow controller（ UPFC） with the validity of the proposed control method proved by experimental results.